Sean Patrick Callahan, M.D.
Family Medicine Physician · Oak Harbor, OH
Sean Patrick Callahan, M.D. is a family medicine physician with a practice address in Oak Harbor, Ohio, and NPI 1194811828, issued on Oct 4, 2006. Check the license (Ohio 35-07-4846, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Sean Patrick Callahan
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 35-07-4846 OH
Self-reported in NPPES; status is on the state search - Practice location
- 11697 W State Route 163, Oak Harbor, OH 43449
- Phone
- (419) 898-0993
- Enumerated
- Oct 4, 2006
- Record last updated
- Oct 6, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (419) 898-2444
- Medicaid ID
- 2084784 OH
- Medicare enrollment
- Enrolled (PECOS I20070109000498); accepts Medicare assignment
- Medical or professional school
- University Of Toledo College Of Medicine, 1995
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 5,606 in Ohio → Look up another NPI →
Also registered at 11697 W State Route 163
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Chad Blunt, M.D.Family Medicine Physician1447345301
Verify Sean Patrick Callahan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35-07-4846Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.1 times the Medicare Part D claims of the average family medicine physician in 2024
10,880 Medicare Part D claims for 451 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 275 claims were for opioids.
Most prescribed
- Atorvastatin Calcium477 claims
- Amlodipine Besylate431 claims
- Furosemide323 claims
- Potassium Chloride309 claims
- Levothyroxine Sodium304 claims
- Simvastatin275 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 72.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $990.16
47 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Magruder Medical Group LtdOak Harbor, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sean Patrick Callahan among 5,606 family medicine physician records in Ohio
Sean Patrick Callahan, M.D. is one of 5,606 family medicine physician records with a practice address in Ohio. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 18% of them.
- NPI issued2006 · 18% of these records are older, 48% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1995 · median 2005 among the 3,510 with a school on file
- Record last updated2020 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 family medicine physician records list a practice address in Oak Harbor
They are 4 of the 78 NPPES records with a practice address in Oak Harbor, and 5,606 family medicine physician records in Ohio.
All 5,606 in Ohio → Every provider in Oak Harbor → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Chad Blunt, M.D.Oak Harbor, OH 434491447345301
- Krishna Ragothaman, MDOak Harbor, OH 434491295738235
- Ronald Shemenski, M.D.Oak Harbor, OH 434491598709669
- Shylah MillerMillbury, OH 434471417717935
- David Bodie, M.D.Port Clinton, OH 434521982797668
- Matthew Braniecki, D.O.Port Clinton, OH 434521992062012
- Daniel Cadigan, MDPort Clinton, OH 434521114955531
- Karen Klaege, MDPort Clinton, OH 434521790996262
Common questions
What is Sean Patrick Callahan, M.D.'s NPI number?
Sean Patrick Callahan, M.D.'s National Provider Identifier (NPI) is 1194811828, issued on Oct 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Sean Patrick Callahan, M.D. located?
The NPPES record lists a practice address at 11697 W State Route 163, Oak Harbor, OH, 43449. Phone: (419) 898-0993. Providers update this record themselves, so call before visiting.
How can I verify Sean Patrick Callahan, M.D.'s license?
NPPES lists Ohio license number 35-07-4846, as entered by the provider. Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Sean Patrick Callahan, M.D. prescribe under Medicare Part D?
In 2024, Sean Patrick Callahan, M.D. had 10,880 Medicare Part D claims for 451 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Sean Patrick Callahan, M.D.'s MIPS final score?
The 2023 MIPS final score is 72.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.